Помогите решить дроби 9/10*20/27+5/16:10/24-5/9*1 7/20

Question

Помогите решить дроби 9/10*20/27+5/16:10/24-5/9*1 7/20

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Answer 1

 9/10*20/27+5/16:10/24-5/9*1 7/20=2/3(12)+3/4(9)-17/36=24/36+27/36-17/36=34/36=17/18

(10-2(2/3)):4(8/9)=7(1/3):4(8/9)=22/3:44/9=22/3*9/44=3/2

Answer 2

=2/3+3/4-17/36=34/36=17/18